Wrench



FIG. 1 is a perspective view of a wrench showing my my new design;

FIG. 2 is a front elevational view thereof, the rear elevational view being a mirror image of that shown;

FIG. 3 is a side elevational view thereof, the opposite side being a mirror image of that shown; and,

FIG. 4 is a top plan view thereof, the bottom plan view being a mirror image of that shown. 

The ornamental design for a wrench, as shown and described. 